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Fluctuating Idle...Sometimes high....Sometimes low 200 1990

posted by  SoCal Volvo on  Tue Sep 18 20:50 CST 2007
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last visit: Sat Feb 16 19:59 CST 2008
[RELATED]

Hey folks
I've been having some idle issues of a fairly diverse nature where sometimes the idle won't go back down (but doesn't go too high, only about 1000 rpm)and then other times the RPMS get so low that it seems like it will stall but somehow doesn't, just shakes around a bit. Is there an engine sensor that may be malfunctioning? I have fairly recently replaced the AMM with a good BOSCH one, my ECU is a 951, and the all vaccum hoses look ok. Its been about two years since a flame trap job has been done, and it also looks like my voltage regulator needs adjusting 'cause my battery is leakin a bit. I dont know if any of that is helpful, but anything posted would be of help.

Thanks a bunch
Jon






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